How severe is CVE-2021-40493?

CVE-2021-40493 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40493?

CVE-2021-40493 primarily affects Zohocorp Manageengine Opmanager. In total, 111 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40493?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-40493 published?

CVE-2021-40493 was published on 2021-10-13 and last updated on 2026-06-17.

CVE-2021-40493

CVE-2021-40493 is a critical-severity vulnerability in Zohocorp Manageengine Opmanager with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 50% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 50% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Zohocorp Manageengine Opmanager
Published: 2021-10-13
Last modified: 2026-06-17

Description

Zoho ManageEngine OpManager before 125437 is vulnerable to SQL Injection in the support diagnostics module. This occurs via the pollingObject parameter of the getDataCollectionFailureReason API.

Frequently asked questions

What is CVE-2021-40493?: Zoho ManageEngine OpManager before 125437 is vulnerable to SQL Injection in the support diagnostics module. This occurs via the pollingObject parameter of the getDataCollectionFailureReason API.
How severe is CVE-2021-40493?: CVE-2021-40493 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40493?: CVE-2021-40493 primarily affects Zohocorp Manageengine Opmanager. In total, 111 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-40493 published?: CVE-2021-40493 was published on 2021-10-13 and last updated on 2026-06-17.

References

https://www.manageengine.com/network-monitoring/security-updates/cve-2021-40493.html

Affected products (111)

cpe:2.3:a:zohocorp:manageengine_opmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:-:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125108:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125110:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125111:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125112:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125113:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125114:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125116:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125117:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125118:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125120:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125121:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125123:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125124:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125125:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125136:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125137:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125139:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125140:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125143:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125144:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125145:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125156:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125157:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125158:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125159:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125161:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125163:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125174:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125175:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125176:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125177:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125178:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125180:*:*:*:*:*:*

More vulnerabilities in Zohocorp Manageengine Opmanager

CVE-2022-29535 — Critical (CVSS 9.8): Zoho ManageEngine OPManager through 125588 allows SQL Injection via a few default reports.
CVE-2021-44514 — Critical (CVSS 9.8): OpUtils in Zoho ManageEngine OpManager 12.5 before 125490 mishandles authentication for a few audit directories.
CVE-2021-41075 — Critical (CVSS 9.8): The NetFlow Analyzer in Zoho ManageEngine OpManger before 125455 is vulnerable to SQL Injection in the Attacks Module…
CVE-2021-41288 — Critical (CVSS 9.8): Zoho ManageEngine OpManager version 125466 and below is vulnerable to SQL Injection in the getReportData API.
CVE-2021-3287 — Critical (CVSS 9.8): Zoho ManageEngine OpManager before 12.5.329 allows unauthenticated Remote Code Execution due to a general bypass in the…
CVE-2020-28653 — Critical (CVSS 9.8): Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution…

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